Which of the following is a polar molecule?

(a)

BF₃

(b)

SiF₄

(c)

SF₄

(d)

XeF₄

Identify the pair of species that possess same bond order.

(a)

\(O_{ 2 }^{ 2- }\), B₂

(b)

NO, CO

(c)

N₂,O₂

(d)

He₂, H₂

In the formation of ethylene molecule, the carbon atom makes use of___________ hybridisation.

(a)

sp

(b)

Sp²

(c)

sp³

(d)

dsp²

Statement I: N₂, CO and CN^- are having same bond order.
Statement II : Isoelectronic species always have same bond order.

(a)

Both statement I and II are true and statement II explains statement I.

(b)

Both statement I and II are true but statement I does not explain statement II.

(c)

Statement I is true, but statement II is false

(d)

Both-statement I and II are false

Statement I : Bond angle of BF₃ and NF₃ are different
Statement II : Both the molecules are having different shapes.

(a)

Both statement I and II are true and statement II explains statement I. 

(b)

Both statement I and II are true but statement I does not explain statement II.

(c)

Statement I is true, but statement II is false

(d)

Both-statement I and II are false